Tractor plow



C. HAFF KE TRACTOR PLow April A12., 1927.

Filed April 21. 1923 2 Sheets-Sheet `1 TRACTOR PLOW Filed April 2l, 1923 2 Sheets-Sheet 2 provideAaniinproved tractor plow embody-` Patented Apr. 12, 192.7.

CHARLES HArrxn, or WASHINGTON, ARKANSAS.

TRACTOR PLOW.

Application led April 21, 1923. `Serial No. 633,676.V

This invention relates to plows and more particularly to plows which areadapted to be drawn by tractors, and the primary object ofthe invention is to Vprovide a novelplow and novel means for Connecting the plow with the rear end of a tractor, whereby they plow will -formV a continuation of said tractor-and readily follow the movementl of the tractor and thus permit the plowing or' corners and the like. y

Another object of the invention is to' providel aY `tractor lplow having a three-point suspension, and Ynovel means for preventing side draft or side slip on the tractor.r s

-A further object of the invention is to ing novel means forv permitting `the ready raising "of therV plow frame, whereby the plows can be withdrawn from out of the ground, When5so desired so as to permitv the easyv turning of the tractorand the like. A further object-oitl the invention is to p-rovidefnovelmeans for controlling the plow. fromithe drivers seat. of a tractor.

yA still l further object of the invention is to providean improved4 tractor plow of the above character, which will be durable and etiicient in use,lone that will be simplev and easy tomanutacture, and one which can be placed upon themarket at a reasonable cost. lWith'these andotherobjects in view, the invention consistsinthe novel construction, arrangement and formationof parts, as will be hereinaftergmore specifically described, claimed'and illustrated in the accompanying' drawings, inl which drawings:

Figure lisa side elevation of the improved tractor plow showing the same in operative position to a tractor, the tractor being -shown in dotted lines.

'Figui-e2 is a top planview of the improved plow showing the same attachedto a tractor, the tractor-beingshown in dotted lines, an l Figure?) is a fragmentary perspective view ofthe rear endofthe improved tractor plow illustratingthe means for permitting the connection of the swivel guide wheel with the plow frame.

Referring to the. drawings in detail,

- wherein similar reference characters desig-V nate corresponding parts throughout' the several viewsthe letter A` generally-k indicates the improvedv tractor plow and B a tractor with which the same can be asso-,k

ciated.

The tractor B can of course be of any preferred character'or make and can be provided withany preferred type of draw bar.

The' improved plowA embodies a frame 5 including the side bars 6 and 7. The side bar 6 is extended beyond'the side bar 5 and has its rear end connected to the rear end or the side bar 7 by a rear diagonal bar 8. The forward ends of the side bars 6and 7 have-secured thereto in any preferred way the transverse shaft 10 and hingedly mounted upon the sha'l't is the attaching draw bar plate 11.1 YAs shown this plate 11 eX- tends transversely of the frame 5 and has its rear end provided with barrels 12 for receiving the said shaft. The draw bar plate 11 is secured to the draw bar of the tractor in anypreii'erredway and according to the character or the draw bar carried by the said tractor. The :trame Vis preferably vbraced by a transverse cross bar 13 and an inclined diagonally extending cross bar 14. The extreme rear end of the frame carries f a casting 15 embodying a sleeve or vertically disposed bearing 16 for receiving the sliding post. 17. 'Y The lower end of lthe post 17 is provided with an angularly extending fork .18ror rotatably supporting the castor wheel 19. The fork v18 is Vprovided with a semiannular stop flange 20 which is adapted to engage stops 21 formed on the sleeve 16 and thus it can be seen that when the yoke 1S l is in engagement with Vthe lower end or the sleeve 1G, complete rotary movement of the castor wheel 19 is revented which eliminates side draft? on tie tractor and frame 5. It is obvious however, that when the frame 5 is raised on the post 17 theaxis of the semi-annular stop. 2O is out of engagement with the sleeve 16 which permits free rotation of the said post.

The upper end of the post 17 has secured thereto stop vcollars 23 and 24 between which .is positioned a collar 25 which permits free rotary movement oit the post. This collar 25 is provided with a forwardly extending bifurcated yarm 26, in which is slidably mounted the pivoted holding arm 27, the inner face of which is provided vwith oppolos sitely directed upper and lower sets of teeth s.

28 and28.. These teeth'28 and 28 are 'adapted to engage a suitable bolt or pin 29 carried Vby the bifurcated arm 26 which forms the means for permitting the holding of the frame in a raised or lowered position oni'the said post V17. This arm 27 is pivotnllv secured lo the rusting l5 hy ineens ol ay pivot pin nl und the infin is inluptcifl to he inored towurd :ind ewziv .from the pin 2S) hv ineensol. :i pull rope 3l which con leed toward the driveris sent ol the tractor. Ilowover, the erm QT is noun-illy urged toward the pin 2l) b v ineens ol' u contractile coil .spring l2 whirh is secinfed respectively to Ehe sleeve .lll und lo the said iufm 2T.

ll con be seen that when the pin engages livio teeth 2S the :freine ,is held :against rnis ingr inowinent on lherposi' .l :ind thus the plow held in yenngement with the ground und lhut when the pin El) is in enguoement with the teeth 2li', the frame will be held inn rinsed position :ind the plow out oli' en gaiirinent with the ground,

ll is obvious that when the rope 3l is pulled the teeth 28 nre moved nwuv from the pin QQ whirl; will permit the raising o'l the l'ruine on the reid post.

It is to be understood of course that one or more plows cani be associated with the l'runie :ind their the ironie een he mede larger or smaller according' to the number oilplows to he csnried thereby. )is shown the lrnnie supports two plows which include the nlzzndnrds Bil und Vthe bottoms 36.

'ln order to permit the ensy lnisiiiu;l ol the plows out ol the n'round without undne el'ort on the pui-toiE `the operator, l provide e roel; shalt l mounted in suitzihle hearings il rurried bv the side hors (l und T and this rofl; shixlt lies keyed or otherwise secured thereto uV crunh or lifting;l leg' This ernnl( or lil'tino1 leg; ll is inode :in sections -ll :nid lo which nre connected together hv menus of u knuckle joint 4G, rind i spi-infr -Lli is employed for normally holdine: the scr-tions lil und llo in dn'cet clignnuin with one another. Suitable stops Ll'S :nid el!) :ire provided :lor limiting the siviineiiir movement of the sold rank or lifting: len' fill. J-r crunk :irxn 5() is secured to the rock shell', el() und n contractile coil sprintf 5l is scoured to the seid crunk :irm S) und to u stzttionznfy portion of the frame, es :il fri. Il' thus obvious that the spring norinulljv tends to hold the crunk or lifting leg;- l-I-l in :i raised position against the stop lh. lloeloiblv mounted upon `the shalt l0 is nu operating; hund lever :3 which is disposed ndjurent to the drivers sont o l the irzulor und this lover 5? is connected hy in nos ol :i linl( Trl with the eriinl; 50.

vow in operation of the improved plow, when il' is desired to reise the plow bottoms the l'roni out ot the ground,` the driver pulls ou the lever 53 which of course will rock the shrill' lll und bring;r the lifting leel 43 downwnrd into engugeinent with the ground.`

Vlhe 'lorwnrd movement oli the trurtor will dig;- lhe lilting leg in the ground und move the seine to complete verlienl position which will raise [he 'lr-une 5. The raisingv move- Leeefioo ment olE the 'freine 5 will permit the drop ping olE the castor wheellll, the voke 1 8 und the post lT downward :ind allow the pin 2S) to engage in one o1 the lower set of teeth 28. As soon as the pin 29 engages in one of the lower teeth 28 formed on the swinging bin' 21 the costorwheel L9 will support the ironie 5 und the plows in :t raised position nliove lthe level oi the ground. It to be also noted ol' course that the frnnjie 5 `lulerums on `the shaft l() which eurried by the drew bnr plate ll. Alfter the lifting` ler;l h-is swung pest the vertical, the knuckle joint to will hre-uk, that is the sections /lfl und l5 will. told beek ngainstthe tension ol the spring l?, which will permit the spring to automatically `return the rock shirlft l() und the liftingl leg `to its normnl raised position.

Now when it is desired to permit the plow bottoms to ngein drop into `engagement with the ground, .it isin'ierely necessary to pull upon the rope `Ell which will swing the bor 2T from out of the path of the pins 2) and thus permit `the dropping of the tranne upon the post 17, o

From the .foregoing description it can be seen that l have provided im improved irzictor plow having ii. three-point suspension und which is so constructed that the sinne practically forms :in integral port o' the tractor lrnine and will thus follow the seme through all `oi' `its various movements and permit the close igilowing to ai'ence and around `lhecorners und the like;` The tractor plow is also constructed so that `only a few adjustments nre .necessary iwhich are readily obvious to n person sldlled `in plowing.

The lower end of the section 44 of `the` lill ing leg 4:3 een he provided with teeth 55 il' so desired for facilitating the digging ihercol in the ground. H 1

llllhile I have shown av particular type 0f plow and plow 'loot znidstanderd attached lo the iframe, it is to hehunderstood that other types oi standards, plows and agricultural implements can `be connected With the frame.

(hnnges in details muy he ina-de `without departingl from the spirit or the scope of this invention.

What I claim es new is:

1. "lhe combination with n tractor inclnch ing` n d 'aw bnr, ol n tractor plow including 1 iframe, the for wird end of the frame beine; supported on the reinend ol the tractor on n horizontal pivot thereby pern'iittjng swinging movement thereof in o horizontal plone, u vertically disposed sleeve carried by the rein' end ol the frame, a post slidelolyV mounted in said sleeve, nndmounted for rotary movement therein, a castor wheel cer` ried b v the post, ineens for raising and low-` ering; the freine on the post, plow bottoms 1urried by the frame, stops carried by the ioo sleeve, stops carried by the post adapted to engage the stops formed on the sleeves when the frame is in its'lowermost position r and slidably carried by the sleeve, a castor wheel carried by the post, means for raising the frame whereby downward sliding movement of the post in the sleeve is permitted, a pivoted notched bar carried by the frame and a stationary collar carried by the post, guidepmeans carried by the collar for receiving the bar, a pin connected with said guide means for engaging in one of the notches in said bar for holding the frame in a raised position on the post, and means ynormally urging the notched 'bar ltoward said pin. a Y c 3. The combination with a tractor, of a tractor plow, yincluding a frame, means connectingthe tractor plow at its forward end to the rear end of the tractor for permitting the same to swing in a vertical plane, .a rock shaft carried by the frame, a lifting leg secured to the rock shaft Vfor movement there-Y with, means for rocking the shaft, means for holding the rock shafty in a predetermined position, said lift leg including Vfa pair of sections, a knuckle joint connecting the sections together', a stop carried by the frame and disposed in the path of the upper section of the left leg, and resilient means for normally holding the sections in an aligned position, a rear castor wheel, a vertical spindle for the wheel slidably mounted in the frame, and means for latching the spindle in its raised or lowered positions.

In testimony whereof I aiiix my signature.

CHARLES HAFFKE. 

